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The River Cherwell ( , particularly near Oxford, or , particularly in north Oxfordshire) is a major tributary of the River Thames in central England. It rises near Hellidon in Northamptonshire and flows south through Oxfordshire for to meet the Thames at Oxford. It adds a significant discharge to the Thames—when entering Oxford, the Thames's discharge is 17.6 m³/s (622 cu ft/s), but after leaving and consuming the Cherwell it has increased to 24.8 m³/s (876 cu ft/s). The river gives its name to the Cherwell local government district and ''Cherwell'', an Oxford student newspaper. ==Watershed and upper course== The Cherwell is the northernmost tributary of the Thames. It rises in the ironstone hills at Hellidon, two miles (3 km) west of Charwelton near Daventry. Helidon Hill immediately north of the source forms a watershed: on the south side, the Cherwell feeds the River Thames and thence the North Sea at the Thames Estuary; on the north side, the River Leam feeds the Warwickshire River Avon and the River Severn and thence the Bristol Channel. (A third river system on this watershed rises east of Charwelton and feeds tributary streams of the River Nene and thence the North Sea at The Wash, while the source of the River Great Ouse is also nearby.) South of Charwelton, the River Cherwell passes between the villages of Hinton and Woodford Halse. Two miles further on, the River Cherwell swings westward for a few miles, passing below the village of Chipping Warden through Edgcote, site of a Romano-British villa. The river passes from Northamptonshire into Oxfordshire at Hay's Bridge on the A361 Daventry to Banbury road. In total the river drains an area of . 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「River Cherwell」の詳細全文を読む スポンサード リンク
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